Anti-corrosion steel pipe outer anti-corrosion layer coating mechanism
By combining a limiting plate inside the steel pipe with a spraying frame, the problem of incomplete coating on the steel pipe surface was solved, achieving full-coverage coating and improving the anti-corrosion effect.
Patent Information
- Application Number
- CN202423212723.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2034-12-25
AI Technical Summary
In existing technologies, the surface coating of steel pipes is often incomplete when the pipes are fixed, resulting in gaps that affect the anti-corrosion effect.
A spraying assembly is used, which is fixed inside the steel pipe by inserting the first and second limiting plates. Combined with the movement of the electric push rod and the spraying frame, the inner wall of the steel pipe is fully covered by spraying, ensuring uniform distribution of the coating.
It achieves full coverage of the steel pipe surface with spraying, avoids gaps in the coating, and improves corrosion resistance.
Smart Images

Figure CN223915671U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel pipe anti-corrosion technology, and in particular to a coating mechanism for an external anti-corrosion layer on an anti-corrosion steel pipe. Background Technology
[0002] Anti-corrosion steel pipes refer to steel pipes that have undergone anti-corrosion processing to effectively prevent or slow down corrosion caused by chemical or electrochemical reactions during transportation and use.
[0003] Chinese patent application number 201822013674.1 discloses a steel pipe spraying device, including a base plate. Two symmetrically arranged columns are fixedly connected to the side wall of the base plate, and a limit rod is fixedly connected between the two columns. A second motor is fixedly connected to the side wall of one of the columns. The output end of the second motor passes through the column and is fixedly connected to a threaded rod, the other end of which is rotatably connected inside the column. This patent, by setting up a second motor, limit rod, threaded rod, valve, nozzle, discharge pipe, spray box, feed hopper, and moving block, activates a first motor, which drives the threaded rod to rotate. The threaded rod then drives the moving block to move, opening the valve. Simultaneously, as the moving block moves the spray box, the anti-corrosion paint inside the spray box flows out through the discharge pipe and the nozzle, spraying the steel pipe with the anti-corrosion paint, thus saving manpower.
[0004] However, the following drawbacks still exist:
[0005] When fixing the steel pipe, it will be fixed to the surface of the steel pipe, which will prevent the surface of the steel pipe from being fully sprayed, leaving gaps. Utility Model Content
[0006] This utility model aims to address the shortcomings of existing technologies by providing a mechanism for coating an external anti-corrosion layer on anti-corrosion steel pipes.
[0007] To achieve the above objectives, the present invention adopts the following technical solution: a coating mechanism for the outer anti-corrosion layer of an anti-corrosion steel pipe, comprising: a mounting plate, wherein support legs are symmetrically arranged at the bottom of the mounting plate, and a spraying assembly for spraying anti-corrosion coating is provided on the mounting plate;
[0008] Furthermore, the spraying assembly includes a fixed plate fixedly connected to one side of the mounting plate, a second limiting plate provided on one side of the fixed plate, a movable frame provided on the top of the mounting plate, a first limiting plate provided on one side of the movable frame, symmetrical stabilizing grooves provided on the top of the mounting plate, a stabilizing frame slidably connected within the stabilizing grooves, an electric push rod fixedly connected to one side of the fixed plate, the telescopic end of the electric push rod fixedly connected to the stabilizing frame, a spraying frame fixedly connected to the top of the stabilizing frame, spraying heads arranged in a circumferential array on the surface of the spraying frame, a paint pump fixedly installed at the bottom of the mounting plate, a material delivery pipe connected to the surface of the paint pump, the material delivery pipe being fixedly connected to the spray heads, and the paint pump being connected to an external material supply mechanism.
[0009] Furthermore, a second motor is fixedly installed on one side of the fixed plate, the second limiting plate is rotatably connected to one side of the fixed plate, and the output shaft end of the second motor is fixedly connected to the second limiting plate.
[0010] Furthermore, a push plate is fixedly connected to the surface of the first limiting plate, and the push plate is rotatably connected to one side of the movable frame.
[0011] Furthermore, a groove is provided on the top of the mounting plate, a slider is slidably connected in the groove, the movable frame is fixedly connected to the top of the slider, a first motor is fixedly installed in the groove, a lead screw is fixedly connected to the output shaft end of the first motor, and the lead screw is threadedly connected to the slider.
[0012] Furthermore, the mounting plate is provided with a support assembly, which includes a second electric push rod fixedly installed at the bottom of the mounting plate, and the telescopic end of the second electric push rod is fixedly connected to a support base.
[0013] Furthermore, the support base is configured as a rubber base, and the top of the support base is arc-shaped.
[0014] The beneficial effects of this utility model are as follows: This utility model is equipped with a spraying assembly. The steel pipe is fixed by the cooperation of the first limiting plate and the second limiting plate. The first limiting plate and the second limiting plate are inserted into the steel pipe to support and fix the inner wall of the steel pipe. The paint pump is started, and the anti-corrosion paint is sent into the nozzle through the conveying pipe and sprayed out to spray the anti-corrosion treatment on the surface of the steel pipe. The first limiting plate and the second limiting plate are both set inside the steel pipe and will not affect the spraying of the paint on the surface of the steel pipe. The spraying frame is moved along the stabilizing groove by the electric push rod, thereby spraying the surface of the steel pipe comprehensively. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;
[0016] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2;
[0017] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 3 ;
[0018] Figure 4 This is a partial structural schematic diagram of the present invention;
[0019] In the diagram: 1. Mounting plate; 2. Support leg; 3. Spraying assembly; 301. Slide rail; 302. Slider; 303. First motor; 304. Lead screw; 305. Movable frame; 306. First limiting plate; 307. Fixed plate; 308. Second limiting plate; 309. Paint pump; 310. Material delivery pipe; 311. Stabilizing tank; 312. Stabilizing frame; 313. Spraying frame; 314. Spray nozzle; 315. Electric push rod one; 316. Second motor; 317. Push plate; 4. Support assembly; 401. Electric push rod two; 402. Support base;
[0020] The accompanying drawings in this utility model are all schematic diagrams and their sizes do not represent actual dimensions.
[0021] The following will describe in detail the embodiments of this utility model with reference to the accompanying drawings. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0023] like Figures 1-4 As shown, an anti-corrosion coating mechanism for an external anti-corrosion layer of a steel pipe includes: a mounting plate 1, support legs 2 symmetrically arranged at the bottom of the mounting plate 1, and a spraying assembly 3 for spraying anti-corrosion coating on the mounting plate 1.
[0024] The spraying assembly 3 includes a fixed plate 307 fixedly connected to one side of the mounting plate 1. A second limiting plate 308 is provided on one side of the fixed plate 307. A movable frame 305 is provided on the top of the mounting plate 1. A first limiting plate 306 is provided on one side of the movable frame 305. A stabilizing groove 311 is symmetrically opened on the top of the mounting plate 1. A stabilizing frame 312 is slidably connected in the stabilizing groove 311. An electric push rod 315 is fixedly connected to one side of the fixed plate 307. The telescopic end of the electric push rod 315 is fixedly connected to the stabilizing frame 312. A spraying frame 313 is fixedly connected to the top of the stabilizing frame 312. Spraying heads 314 are arranged in a circular array on the surface of the spraying frame 313. A paint pump 309 is fixedly installed at the bottom of the mounting plate 1. A material conveying pipe 310 is connected to the surface of the paint pump 309. The material conveying pipe 310 is fixedly connected to the spraying head 314. The paint pump 309 is connected to an external material supply mechanism.
[0025] The steel pipe is fixed by the cooperation of the first limiting plate 306 and the second limiting plate 308. The first limiting plate 306 and the second limiting plate 308 are inserted into the steel pipe to support and fix the inner wall of the steel pipe. The paint pump 309 is started to send the anti-corrosion paint into the spray head 314 through the conveying pipe 310 and spray it out to perform anti-corrosion treatment on the surface of the steel pipe. The first limiting plate 306 and the second limiting plate 308 are both set inside the steel pipe and will not affect the spraying of the paint on the surface of the steel pipe. The electric push rod 315 drives the spray frame 313 to move along the stabilizing groove 311, thereby spraying the surface of the steel pipe comprehensively and avoiding omissions.
[0026] To drive the steel pipe to rotate and further improve the coating effect on the steel pipe surface, a second motor 316 is fixedly installed on one side of the fixed plate 307, and a second limiting plate 308 is rotatably connected to one side of the fixed plate 307. The output shaft end of the second motor 316 is fixedly connected to the second limiting plate 308. The second motor 316 drives the second limiting plate 308 to rotate, thereby causing the steel pipe on the surface of the second limiting plate 308 and the first limiting plate 306 to rotate.
[0027] To facilitate the movement of the steel pipe and the loading of the steel pipe, a push plate 317 is fixedly connected to the surface of the first limiting plate 306. The push plate 317 is rotatably connected to one side of the movable frame 305. The push plate 317 limits one side of the steel pipe.
[0028] To facilitate the movement of the steel pipe, a groove 301 is provided on the top of the mounting plate 1. A slider 302 is slidably connected within the groove 301. A movable frame 305 is fixedly connected to the top of the slider 302. A first motor 303 is fixedly installed within the groove 301. A lead screw 304 is fixedly connected to the output shaft of the first motor 303, and the lead screw 304 is threadedly connected to the slider 302. The first motor 303 drives the lead screw 304 to rotate, which in turn drives the slider 302 and the movable frame 305 to slide along the groove 301, pushing the steel pipe towards the second limiting plate 308 and fixing and limiting the steel pipe.
[0029] To support the steel pipe, a support assembly 4 is provided on the mounting plate 1. The support assembly 4 includes an electric push rod 401 fixedly installed at the bottom of the mounting plate 1, and a support base 402 is fixedly connected to the telescopic end of the electric push rod 401. When the electric push rod 401 is activated, it causes the support base 402 to rise, placing the steel pipe to be sprayed on top of the support base 402. Under the action of the push plate 317, the steel pipe is pushed towards the second limiting plate 308, and the steel pipe is supported by the first limiting plate 306 and the second limiting plate 308.
[0030] To avoid scratching the steel pipe, the support base 402 is made of rubber, and the top of the support base 402 is arc-shaped. The arc-shaped top of the support base 402 better fits the surface of the steel pipe, improving the fixing effect.
[0031] To ensure a more uniform coating on the steel pipe surface, the spraying frame 313 is circular, with the electric push rod 401 positioned at the center of the bottom of the mounting plate 1. During spraying, the electric push rod 401 lowers the support base 402, preventing interference with the movement of the spraying frame 313.
[0032] In summary, the anti-corrosion coating mechanism for an external anti-corrosion layer of a steel pipe provided in this embodiment has the following advantages: a spraying assembly 3 is provided, and the steel pipe is fixed by the cooperation of the first limiting plate 306 and the second limiting plate 308. The first limiting plate 306 and the second limiting plate 308 are inserted into the steel pipe to support and fix the inner wall of the steel pipe. The paint pump 309 is started to send the anti-corrosion paint into the spray nozzle 314 through the conveying pipe 310 and spray it out to perform anti-corrosion treatment on the surface of the steel pipe. The first limiting plate 306 and the second limiting plate 308 are both set inside the steel pipe and will not affect the spraying of the paint on the surface of the steel pipe. The spraying frame 313 is driven to move along the stabilizing groove 311 by the electric push rod 315, thereby performing comprehensive spraying on the surface of the steel pipe.
[0033] In use, the electric push rod 401 is activated to raise the support base 402. The steel pipe to be sprayed is placed on top of the support base 402. The first motor 303 is then activated, which drives the lead screw 304 to rotate. The rotation of the lead screw 304 causes the slider 302 and the movable frame 305 to slide along the slide groove 301. Under the action of the fixed plate 307, the steel pipe is pushed towards the second limiting plate 308, which fixes and limits the steel pipe. The first limiting plate 306 and the second limiting plate 308 support the steel pipe. Before spraying, the electric push rod 401 lowers the support base 402. The paint pump 309 is started, and the anti-corrosion paint is sent to the nozzle 314 through the delivery pipe 310 and sprayed out to treat the surface of the steel pipe. The first limiting plate 306 and the second limiting plate 308 are both set inside the steel pipe and will not affect the spraying of the paint on the surface of the steel pipe. The spraying frame 313 is driven to move along the stabilizing groove 311 by the electric push rod 315, and the second motor 316 drives the second limiting plate 308 to rotate, thereby rotating the steel pipe on the surface of the second limiting plate 308 and the first limiting plate 306, so as to carry out comprehensive spraying on the surface of the steel pipe, ensuring the uniformity of the spraying and improving the anti-corrosion performance of the steel pipe.
[0034] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other situations without modification, are all within the protection scope of the present invention.
Claims
1. A mechanism for coating an external anti-corrosion layer on a steel pipe, characterized in that, include: Mounting plate (1), the mounting plate (1) is symmetrically provided with support legs (2) at the bottom, and the mounting plate (1) is provided with a spraying assembly (3) for spraying anti-corrosion coating; The spraying assembly (3) includes a fixing plate (307) fixedly connected to one side of the mounting plate (1), a second limiting plate (308) provided on one side of the fixing plate (307), a movable frame (305) provided on the top of the mounting plate (1), a first limiting plate (306) provided on one side of the movable frame (305), symmetrical stabilizing grooves (311) provided on the top of the mounting plate (1), a stabilizing frame (312) slidably connected in the stabilizing groove (311), and an electric push rod fixedly connected to one side of the fixing plate (307). The electric push rod (315) is fixedly connected to the telescopic end of the electric push rod (315) and the stabilizer (312). The top of the stabilizer (312) is fixedly connected to the spray frame (313). The spray frame (313) has a circumferential array of spray nozzles (314) on its surface. The bottom of the mounting plate (1) is fixedly installed with a paint pump (309). The surface of the paint pump (309) is connected to a material conveying pipe (310). The material conveying pipe (310) is fixedly connected to the spray nozzles (314). The paint pump (309) is connected to an external material supply mechanism.
2. The anti-corrosion coating mechanism for external anti-corrosion layer of anti-corrosion steel pipe according to claim 1, characterized in that, A second motor (316) is fixedly installed on one side of the fixed plate (307), and a second limiting plate (308) is rotatably connected to one side of the fixed plate (307). The output shaft end of the second motor (316) is fixedly connected to the second limiting plate (308).
3. The anti-corrosion coating mechanism for external anti-corrosion layer of anti-corrosion steel pipe according to claim 1, characterized in that, A push plate (317) is fixedly connected to the surface of the first limiting plate (306), and the push plate (317) is rotatably connected to one side of the movable frame (305).
4. The anti-corrosion coating mechanism for external anti-corrosion layer of anti-corrosion steel pipe according to claim 3, characterized in that, The mounting plate (1) has a groove (301) on its top. A slider (302) is slidably connected in the groove (301). The movable frame (305) is fixedly connected to the top of the slider (302). A first motor (303) is fixedly installed in the groove (301). A lead screw (304) is fixedly connected to the output shaft end of the first motor (303). The lead screw (304) is threadedly connected to the slider (302).
5. The anti-corrosion coating mechanism for external anti-corrosion layer of anti-corrosion steel pipe according to claim 1, characterized in that, The mounting plate (1) is provided with a support assembly (4), which includes an electric push rod (401) fixedly installed at the bottom of the mounting plate (1), and a support base (402) is fixedly connected to the telescopic end of the electric push rod (401).
6. The anti-corrosion coating mechanism for external anti-corrosion layer of anti-corrosion steel pipe according to claim 5, characterized in that, The support base (402) is configured as a rubber base, and the top of the support base (402) is arc-shaped.
7. The anti-corrosion coating mechanism for external anti-corrosion layer of anti-corrosion steel pipe according to claim 5, characterized in that, The spraying rack (313) is circular, and the electric push rod (401) is located at the center of the bottom of the mounting plate (1).
Citation Information
Patent Citations
Steel pipe spraying device
CN209549779U